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Lindholm O, Niklasson E, Lind J, Cardinale DA, Lundberg TR. A pilot study on bio-banding in male youth ice hockey: Players' perceptions and coaches' selection preferences. PLoS One 2024; 19:e0308676. [PMID: 39133685 PMCID: PMC11318913 DOI: 10.1371/journal.pone.0308676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/29/2024] [Indexed: 08/15/2024] Open
Abstract
Classifying athletes based on estimates of biological maturation (i.e., bio-banding) as a supplement to traditional age grouping has been shown to be a potential tool for enriching player development in team sports; however, bio-banding has not yet been evaluated in ice hockey. The primary aim was to investigate player experiences and coaches' selection preferences in bio-banding versus age-banding in a group of 12-13-year-old (early growth spurt) male elite players (n = 69). We also examined the relationship between somatic maturity, expressed as a % predicted adult height (%PAH), and fitness performance. Bio-banding was assessed using a questionnaire and 29 coaches selected their top players in each game based on age or bio-bands. %PAH correlated with grip strength (r = .57, p>0.001) and jumping power (r = .63, p<0.001), but not with vertical jump height, sprint time or endurance. Players who played against more mature players in bio-bands than in age groups experienced higher demands, while players who played against less mature players were able to utilize their skills to a greater extent. Coaches generally favored later-than-average maturing players who performed better on performance tests and chronologically older players in bio-banding. We conclude that bio-banding in youth ice hockey has some promising effects and warrants further evaluation.
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Affiliation(s)
- Oliver Lindholm
- Division of Clinical Physiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Erik Niklasson
- Division of Clinical Physiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Physical Activity Research, Copenhagen University Hospital—Rigshospitalet, Copenhagen, Denmark
| | - John Lind
- Swedish Ice Hockey Association, Stockholm, Sweden
| | - Daniele A. Cardinale
- Department of Physiology, Nutrition and Biomechanics, The Swedish School of Sport and Health Sciences (GIH), Stockholm, Sweden
- The Swedish Sports Confederation (Riksidrottsförbundet), Stockholm, Sweden
| | - Tommy R. Lundberg
- Division of Clinical Physiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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DE Almeida-Neto PF, DA Costa RF, DE Macêdo Cesário T, Aidar FJ, DE Matos DG, Dantas PMS, Cabral BGAT. Fat-Free Mass Index for body composition analysis in pediatric sport: a cross-sectional study. J Sports Med Phys Fitness 2024; 64:160-166. [PMID: 37955930 DOI: 10.23736/s0022-4707.23.15377-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
BACKGROUND Analyzing fat free mass (FFM) helps sport professionals during the prescription of sport training for children and adolescents in a sport initiation program. In this way, it is possible to determine fat mass (FM) (FFM subtracted from total body weight) and design interventions to increase FFM and reduce %F, making it possible to maximize performance in relation to the physical demands of sport. However, there is still no reliable anthropometric index to analyze FFM in this population. The aim the present study was to develop the Fat-Free Mass Index (FFMI) for pediatrics of both sexes. METHODS Cross-sectional study with a sample composed of 254 pediatrics (139 males [age: 13.0±2.3] and 115 females [age: 12.5±2.2]), from a sports initiation school. We divided the sample into the groups: 1) development (N.=169); and 2) cross-validation (N.=85). The body composition was analyzed by dual-energy X-ray absorptiometry (DXA), in addition we acquired anthropometric data (height, body weight and hip circumference) for the development of the FFMI - Pediatric (FFMIp). By means of linear regression we tested the predictive power of FFM using DXA as a reference method, then we developed FFMIp and tested its reliability and validity in relation to DXA. RESULTS FFMIp consisted of: -16.679 + (0.615 × body mass (kg)) - (2.601 × sex) + (0.618 × age(years)) - (0.332 × hip(cm)) + (0.278 × stature(cm)), where for sex 0 = male and 1 = female. For the FFM analysis, FFMIp showed no significant difference from DXA (P>0.05). It also showed significant accuracy (Cb>0.960), precision (ρ>0.990) and agreement (CCC>0.960) for both groups (development and cross-validation). CONCLUSIONS Pediatric FFMI proposed by this study proved to be valid for the analysis of fat-free mass in pediatric athletes of sports initiation of both sexes.
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Affiliation(s)
- Paulo F DE Almeida-Neto
- Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil -
- Health Sciences Center, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil -
| | - Roberto F DA Costa
- Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | | | - Felipe J Aidar
- Department of Physical Education, Federal University of Sergipe (UFS), São Cristovão, Brazil
- Graduate Program in Master's Level at Department of Physical Education, Federal University of Sergipe (UFS), São Cristovão, Brazil
- Program of Physiological Science, Federal University of Sergipe (UFS), São Cristovão, Brazil
| | - Dihogo G DE Matos
- Cardiovascular and Physiology of Exercise Research Laboratory, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada
| | - Paulo M S Dantas
- Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Breno G A T Cabral
- Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
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Portella DL, Vidal-Espinoza R, Sulla-Torres J, Castelli Correia de Campos LF, Gomez-Campos R, Cossio-Bolaños M. Reference values for body composition and physical fitness of young Brazilian elite soccer players. Front Physiol 2023; 14:1285952. [PMID: 38028780 PMCID: PMC10652792 DOI: 10.3389/fphys.2023.1285952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
Objective: a) to verify whether body composition and physical fitness should be analyzed by chronological age and/or maturity stage in young Brazilian soccer players and b) to propose reference values for the evaluation of body composition and physical fitness by maturity stage in elite soccer players. Methods: A descriptive-correlational study was carried out in 206 young Brazilian soccer players (11-16 years old). The sample selection was non-probabilistic by convenience. Weight and standing height were evaluated. Body composition (BC) was assessed by dual X-ray absorptiometry (DXA). BC indicators [(percent fat (%F), Fat-free mass (FFM), Fat mass (FM) and Bone mass (BM)] were extracted. For physical fitness (PF), we applied the Flexibility (cm) sit and reach tests, explosive strength tests [Counter Movement Jump CMJ (cm) and horizontal jump HJ (cm)], speed [Speed 10, 20, 30 and 40 m (seconds)] and Yo-Yo endurance level I test. Percentiles were constructed for BC and PF using the LMS method [L (Lambda; skewness), M (Mu; median) and S (Sigma; coefficient of variation)]. Results: The explanatory power between chronological age (CA) with BC was: FM (R2 = 0.03%), FFM (R 2 = 0.66%) and BM (R 2 = 0.62%), while between maturity status (MS) with BC were: FM (R 2 = 0.04%), FFM (R 2 = 0.71%) and BM (R 2 = 0.66). The explanatory power between the CA with the physical fitness tests ranged from: (R 2 = 0.22-0.62%). While between MS with physical fitness the values ranged from: (R 2 = 0.23-0.64%). Percentiles per MS (P3, P5, P10, P15, P25, P50, P75, P85, P90, P95 and P97) were proposed for both BC and PF. Conclusion: The results of the study have shown that the evaluation of BC and PF of young soccer players should be performed by controlling for MS rather than for CA. The inclusion of a non-invasive method to control MS by means of percentiles during puberty may contribute to the development of retention and exclusion of young soccer players, thus, they may have a better chance of achieving sporting success.
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Affiliation(s)
- Daniel Leite Portella
- School of Physical Education, Master Program in Innovation in Health Education, Universidade Municipal de São Caetano do Sul, São Caetano do Sul, Brazil
| | - Ruben Vidal-Espinoza
- Escuela de Ingenieria de Sistemas, Universidad Católica Silva Henríquez, Santiago, Chile
| | | | | | - Rossana Gomez-Campos
- Carrera de Ciencias de la Actividad Física, Facultad de Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | - Marco Cossio-Bolaños
- Carrera de Ciencias de la Actividad Física, Facultad de Salud, Universidad San Ignacio de Loyola, Lima, Peru
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Alvear-Vasquez F, Vidal-Espinoza R, Gomez-Campos R, de Campos LFCC, Lazari E, Guzmán-Luján JF, Pablos-Monzó A, Cossio-Bolaños M. Body surface area is a predictor of maturity status in school children and adolescents. BMC Pediatr 2023; 23:410. [PMID: 37598142 PMCID: PMC10439598 DOI: 10.1186/s12887-023-04222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/02/2023] [Indexed: 08/21/2023] Open
Abstract
BACKGROUND Generally, Body surface area (BSA) changes significantly during growth and maturation. These increases portend a possible relationship between body size as determined by BSA with maturational status in children and adolescents. OBJECTIVE To determine the relationship between maturity status (MS) obtained by non-invasive anthropometric methods and body surface area (BSA) in children and adolescents of both sexes in a regional population of Chile. Additionally, we sought to verify the type of linear or nonlinear relationship between MS and BSA in both sexes. METHODS A descriptive (cross-sectional) study was designed in 950 children and adolescents of both sexes (539 males and 411 females). The age range ranged from 6.0 to 17.9 years. Anthropometric measurements were evaluated: body weight, standing height, sitting height. MS was assessed by means of two non-invasive anthropometric techniques. Both techniques predict peak years of growth velocity (APHV) through a regression equation for each sex. BSA (m2) was estimated by means of the Haycock equation. RESULTS The R2 in the linear model is relatively lower (R2 = 0.80 to 0.89 in males and 0.74 to 0.66 in females) in relation to the nonlinear quadratic model (R2 = 0.81 in males and 0.76 to 0.69). The quadratic nonlinear quadratic model reflected an adequate fit (RMSE) for the data set, being in men (RMSE = 1.080 and 1.125), while in women (RMSE = 1.779 and 1.479). CONCLUSION BSA is positively associated with MS determined by two non-invasive methods in Chilean children and adolescents: The nonlinear quadratic model was a better fit to the data distribution. The results suggest the use of BSA as a possible predictor of maturity status in Chilean youth.
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Zhao Y, Gong JX, Ji YT, Zhao XY, He L, Cai SZ, Yan XM. Cross-sectional study of characteristics of body composition of 24,845 children and adolescents aged 3-17 years in Suzhou. BMC Pediatr 2023; 23:358. [PMID: 37442965 PMCID: PMC10339479 DOI: 10.1186/s12887-023-04134-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND We aimed to analyze the characteristics of the body composition of children and adolescents aged 3-17 in Suzhou, China. METHODS A cross-sectional study between January 2020 and June 2022 using bioelectrical impedance was conducted to determine the fat mass (FM), fat-free mass (FFM), skeletal muscle mass, and protein and mineral contents of 24,845 children aged 3-17 who attended the Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, China. Measurement data was presented in tables as mean ± SD, and groups were compared using the independent samples t-test. RESULTS FM and fat-free mass increased with age in both boys and girls. The fat-free mass of girls aged 14-15 decreased after reaching a peak, and that of boys in the same age group was higher than that of the girls (p < 0.05). There were no significant differences in FM between boys and girls younger than 9- and 10-years old. The percentage body fat (PBF) and FM index of girls increased rapidly between 11 and 15 years of age (p < 0.05), and those of boys aged 11-14 were significantly lower (p < 0.05), suggesting that the increase in body mass index (BMI) was mainly contributed by muscle mass (MM) in boys. CONCLUSIONS The body composition of children and adolescents varies according to their age and sex. A misdiagnosis of obesity made on the basis of BMI alone can be avoided if BMI is used in combination with FM index, percentage body fat, and other indexes.
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Affiliation(s)
- Yan Zhao
- Department of Pediatrics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215003, China
| | - Jin-Xin Gong
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Yi-Ting Ji
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Xiao-Yun Zhao
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Lu He
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China
| | - Shi-Zhong Cai
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China.
| | - Xiang-Ming Yan
- Department of Urology, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, China.
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